STM Evo 7/8/9 -AN upper radiator hose kit is an option for the STM Billet Aluminum Radiator if you are using the -16AN outlets. This kit includes two black -AN straight fittings and two feet of black, nylon -AN line to attach from your radiator to a modified -AN water neck. The nylon line supplied is long enough to be cut to your desired length. This kit can also be used in numerous custom applications. Available -10AN, -12AN and -16AN. Vehicle Fitment: 2001-2006 Evolution VII VIII IX • Upper -16AN Hose for STM Billet Aluminum Radiator • Requires a modified -AN Water Neck • Can also be used with custom applications Install Notes: • The matching -16AN lower hose kit is HERE • If you have the STM Billet Radiator, you'll need the STM STM Water Neck with Radiator Cap Relocation • If you're using this on a custom setup and HAVE a cap on your radiator, we also offer an OEM Modified Water Neck with -AN Fitting welded on